Walla Walla County ZIP Codes
Washington, United States · 8 codes
Walla Walla County in Washington has 8 ZIP codes, from 99323 to 99363, serving 8 places.
ZIP codes in Walla Walla
Frequently asked questions
What is the ZIP code of Walla Walla?
Walla Walla has 8 ZIP codes, from 99323 to 99363. The table lists the places each one serves.
How many places are listed in Walla Walla County?
8 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.